Rohm BM2P141X User manual

AC/DC Converter
Non-Isolation Buck Converter
PWM method 10 W 14 V
BM2P141X Reference Board

Notice
www.rohm.com HVB01E
© 2019 ROHM Co., Ltd. All rights reserved.
ᾋ
ᾋᾋ
ᾋHigh Voltage Safety Precautionsᾍ
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ᾍ
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ۍ Read all safety precautions before use
Please note that this document covers only the BM2P141X evaluation board
(BM2P141X-EVK-001) and its functions. For additional information, please refer to the
datasheet.
To ensure safe operation, please carefully read all precautions before
handling the evaluation board
Depending on the configuration of the board and voltages used,
Potentially lethal voltages may be generated.
Therefore, please make sure to read and observe all safety precautions described in
the red box below.
Before Use
[1] Verify that the parts/components are not damaged or missing (i.e. due to the drops).ᴾ
ᴾᴾ
ᴾ
[2] Check that there are no conductive foreign objects on the board.
[3] Be careful when performing soldering on the module and/or evaluation board to ensure that solder
splash does not occur.
[4] Check that there is no condensation or water droplets on the circuit board.
During Use
[5] Be careful to not allow conductive objects to come into contact with the board.
[6] Brief accidental contact or even bringing your hand close to the board may result in
discharge and lead to severe injury or death.
Therefore, DO NOT touch the board with your bare hands or bring them too close to the board.
In addition, as mentioned above please exercise extreme caution when using conductive tools such as
tweezers and screwdrivers.
[7] If used under conditions beyond its rated voltage, it may cause defects such as short-circuit or,
depending on the circumstances, explosion or other permanent damages.
[8] Be sure to wear insulated gloves when handling is required during operation.
After Use
[9] The ROHM Evaluation Board contains the circuits which store the high voltage. Since it stores the
charges even after the connected power circuits are cut, please discharge the electricity after using
it, and please deal with it after confirming such electric discharge.ᴾ
[10] Protect against electric shocks by wearing insulated gloves when handling.
This evaluation board is intended for use only in research and development facilities and
should by handled only by qualified personnel familiar with all safety and operating
procedures.
We recommend carrying out operation in a safe environment that includes the use of high
voltage signage at all entrances, safety interlocks, and protective glasses.

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© 2019 ROHM Co., Ltd. No. 61UG024E Rev.001
2019.1
User’s Guide
AC/DC Converter
Non-Isolation Buck Converter PWM method Output 10 W 14 V
BM2P141X Reference Board
BM2P141X-EVK-001
The BM2P141X-EVK-001 evaluation board outputs 14 V voltage from the input of 90 Vac to 264 Vac. The output current supplies up
to 0.715 A. The BM2P141X which is PWM method DC/DC converter IC built-in 650 V MOSFET is used.
The BM2P141X contributes to low power consumption by built-in a 650 V starting circuit. Built-in current detection resistor realizes
compact power supply design. Current mode control imposes current limitation on every cycle, providing superior performance in
bandwidth and transient response. The switching frequency is 65 kHz in fixed mode. At light load, frequency is reduced and high
efficiency is realized. Built-in frequency hopping function contributes to low EMI. Low on-resistance 1.5 ȍ 650 V MOSFET built-in
contributes to low power consumption and easy design.
Figure 1. BM2P141X-EVK-001
Electronics Characteristics
Not guarantee the characteristics, is representative value.
Unless otherwise noted :V
IN
= 230 Vac, I
OUT
= 0.5 A, Ta:25 °C
(NOTE1) Please adjust operating time, within any parts surface temperature under 105 °C
(NOTE2) Not include spike noise
Parameter Min Typ Max Units Conditions
Input Voltage Range 90 230 264 Vac
Input Frequency 47 50/60 63 Hz
Output Voltage 12.6 14.0 15.4 V
Maximum Output Power - - 10.0 W I
OUT
= 0.715 A
Output Current Range
(NOTE1)
0.000 0.500 0.715 A
Stand-by Power - 150 - mW I
OUT
= 0 A
Efficiency 80.0 83.7 - %
Output Ripple Voltage
(NOTE2)
- 76 - mVpp
Operating Temperature Range -10 +25 +65 °C

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© 2019 ROHM Co., Ltd. No. 61UG024E Rev.001
2019.1
User’s Guide
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Operation Procedure
1. Operation Equipment
(1) AC Power supply 90 Vacع264 Vac, over 20W
(2) Electronic Load capacity 0.715 A
(3) Multi meter
2. Connect method
(1) AC power supply presetting range 90~264 Vac, Output switch is off.
(2) Load setting under 0.715 A. Load switch is off.
(3) AC power supply N terminal connect to the board AC (N) of CN1, and L terminal connect to AC(L).
(4) Load + terminal connect to VOUT, GND terminal connect to GND terminal
(5) AC power meter connect between AC power supply and board.
(6) Output test equipment connects to output terminal
(7) AC power supply switch ON.
(8) Check that output voltage is 14 V.
(9) Electronic load switch ON
(10) Check output voltage drop by load connect wire resistance
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Figure 2. Connection Circuit
Deleting
Maximum Output Power Po of this reference board is 10.0 W. The derating curve is shown on the right. If ambient temperature
is over 40°C, Please adjust load continuous time by over 105 °C of any parts surface temperature.
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AC
Power
Supply
DC Multi Meter
V
Electronics
Load
Power
Meter
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©
2019 ROHM Co., Ltd. No. 61UG024E Rev.001
2019.1
User’s Guide
%03;(9.
Application Circuit
V
IN
= 90 ~ 264 Vac, V
OUT
= 14 V
Figure 4. BM2P141X-EVK-001 Application Circuit

The BM2P141X is non-insulation method without opto-coupler and feeds back the VCC voltage to 14.0 V typ. This VCC voltage is the
voltage between the VCC pin and the GND_IC pin.
The output voltage VOUT is defined by the following equation.
 ൌ ܸ
஼ே்
൅ܸ
ி஽ଶ
െܸ
ி஽ଵ
V
CNT
: VCC Control Voltage
V
FD1
: Forward Voltage of diode D1
V
FD2
: Forward Voltage of diode D2

Figure 5. General Buck converter application circuit
Compared to the general Buck converter as shown above, the number of parts is reduced because the feedback circuit is not
required. However, the output voltage may rise at light load because the VCC voltage and the output voltage that are fed back are
different. In that case, please put a resistance on the output terminal and lower the output voltage.
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© 2019 ROHM Co., Ltd. No. 61UG024E Rev.001
2019.1
User’s Guide
%03;(9.
BM2P141X Overview
Feature
 PWM Frequency=65 kHz
 PWM current mode control
 Switching frequency jitter
 Burst function around light load
 650 V Starter
 650 V Super-Junction Power MOSFET
 VCC Under voltage detection
 VCC Over voltage detection
 Cycle by cycle current limiter
 Soft Start function
Key specifications
 Operation Voltage Range: VCC: 12.00 V ~ 15.12 V
DRAIN 650 V(Max)
 Circuit Current(ON): 0.85 mA(Typ)
 Circuit Current (Burst mode): 0.45 mA(Typ)
 Switching Frequency: 65 kHz(Typ)
 Operating Temperature: -40 °C ~ +105 °C
 MOSFET R-ON: 1.5 ȍ(Typ)
'LPHQVLRQ W(Typ) x D(Typ) x H(Max) 
DIP7K 9.20 mm x 6.35 mm x 4.30 mm
Pitch 2.54 mm
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Figure 6. Block Diagram Figure 7. DIP7K Package
Table 1. BM2P141X PIN description
No. Name I/O Function ESD Diode
V
CC GND
1 - - - - -
2--- --
3 GND_IC I/O GND ط-
4 - - - - -
5 VCC I Vcc - ط
6 DRAIN I/O MOSEFET DRAIN - ط
7 DRAIN I/O MOSEFET DRAIN - ط

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2019 ROHM Co., Ltd. No. 61UG024E Rev.001
2019.1
User’s Guide
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Design Overview
1 Important parameter
 V
IN
: Input Voltage Range AC 90 V ~ 264 Vac (DC 100 V ~ 380 V)
 V
OUT
: Output Voltage DC 14 V
 I
OUT
(Typ) : Constant Output Current 0.5 A
 I
OUT
(Max) : Maximum Output Current 0.715 A
 f
SW
: Switching Frequency Min:60 kHz, Typ:65 kHz, Max:70 kHz
 Ipeak(Min) : Over Current Detection Current Min:1.8 A, Typ:2.0 A, Max:2.2A
2 Coil Selection
2.1 Determining Coil Inductance
The switching operation mode determines the L value so that it becomes as discontinuous mode (DCM) as possible. In the
continuous mode (CCM), reverse current in trr of the diode flows, which leads to an increase in power loss of diode.
Furthermore, this reverse current becomes the peak current when the MOSFET is ON, and the power loss of the MOSFET also
increases. The constant load current I
OUT
(Typ): 0.5 A, the peak current I
L
flowing through the inductor is:
ܫ௅ൌܫ
ை௎்ሺܶݕ݌ሻൈʹൌͳǤͲ
[A]
It tends to be in continuous mode (CCM) when the input voltage drops.
Calculate with input voltage minimum voltage 100 Vdc
with 20% margin and V
IN
(Min) = 80 Vdc.
From the output voltage V
OUT
: 14 V and the diode V
F
: 1 V,
Calculate the maximum value of Duty: Duty (Max).
ሺ݉ܽݔሻൌܸை௎் ൅ܸ
ி
ܸூேሺܯ݅݊ሻൌ ͲǤͳͺͺ
Figure 8. Coil current waveform at OCP detection
From the minimum switching frequency f
SW
(Min) = 60 kHz,
Calculate on time ton (Max)
ሺܯܽݔሻൌ஽௨௧௬ሺெ௔௫ሻ
௙
ೄೈ
ሺெ௜௡ሻൌ͵Ǥͳʹͷ
[ȝsec]
Calculate L value to operate in discontinuous mode.
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ሺெ௜௡ሻି௏௢
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W
W
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©
2019 ROHM Co., Ltd. No. 61UG024E Rev.001
2019.1
User’s Guide
%03;(9.
2.1 Determining Coil Inductance – Continued
Also, calculate L value so that the overcurrent detection becomes maximum load current I
OUT
: 715 mA or more. Overcurrent
detection is calculated by the current flowing through the MOSFET when operating in continuous mode at the minimum
switching frequency f
SW
(Min) = 60 kHz. When the current flowing through the MOSFET ( the coil current at switching ON)
exceeds the minimum value Ipeak (Min): 1.8 A of the overcurrent detection current, the MOSFET is turned OFF. Since a delay
of approximately tdly = 0.1 ȝsec occurs, in reality, the peak current exceeds the Ipeak value and the peak current becomes Ip.
The peak current Ip is obtained by setting the current slope at switching ON to ǻI
L
,
ܫ௉ൌܫ݌݁ܽ݇൅οܫ
௅ൈݐ݈݀ݕ
ܫ௉ൌܫ݌݁ܽ݇൅ܸூே െܸ݋
ܮൈݐ݈݀ݕ
Calculate the output current Io (LIM) at overcurrent detection by securing a margin of 10% from the maximum load current of
715 mA, and setting it as 787 mA.
ܫை௎்ሺܮܫܯሻൌܫ݌െܫݎ݅݌݌݈݁
ʹ൐ܫ
ை௎்ሺܯܽݔሻ
Calculate the minimum value of the L value of the coil. From the above formula,
൐ሼଶൈ௧ௗ௟௬ൈ௙
ೄೈ
ሺெ௜௡ሻିሺ௏
ೀೆ೅
ା௏
ಷ
ሻሽൈሺ௏
಺ಿ
ሺெ௜௡ሻି௏
ೀೆ೅
ሻ
ଶൈ௙
ೄೈ
ሺெ௜௡ሻൈ൫ூ
ೀೆ೅
ሺெ௔௫ሻିூ௣௘௔௞ሺெ௜௡ሻ൯ൈ௏
಺
ሺெ௜௡ሻൌͻͷǤͲ
[ȝH]
Therefore, the inductance value of the coil is discontinuous mode when the rated current Io (Typ) is 0.5 A, and in order to detect
the overcurrent of the maximum load current Io (Max): 0.715 A or more, the condition of 95.0 ȝH to 206.3 ȝH , A coil of 150 ȝH
is selected.
2.2 Inductor Current Calculation
Calculate the maximum peak current of the inductor. The condition where the peak current is maximized is when the input
voltage is the maximum voltage VIN (Max): 380 V, the maximum load current Io (Max): 0.715 A, and the switching frequency is
60 kHz at the minimum.The ripple current Iripple of the coil is given by the following formula.
ܫݎ݅݌݌݈݁ ൌ ݀݅
݀ݐൈݐைே ൌሼܸூேሺܯܽݔሻെሺܸை௎் ൅ܸ
ிሻሽ
ܮൈሺܸை௎் ൅ܸ
ிሻ
ܸூேሺܯܽݔሻൈ݂
ௌௐሺܯ݅݊ሻ

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©
2019 ROHM Co., Ltd. No. 61UG024E Rev.001
2019.1
User’s Guide
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2.2 Inductor Current Calculation -Continued
When it is applied to the formula of the peak current,
ܫ݌ ൌ ܫை௎்ሺܯܽݔሻ൅ூ௥௜௣௣௟௘
ଶൌܫ
ை൅ሼ௏
಺ಿ
ሺெ௔௫ሻିሺ௏
ೀೆ೅
ା௏
ಷ
ሻሽሺ௏
ೀೆ೅
ା௏
ಷ
ሻ
ଶൈ௅ൈ௏
಺ಿ
ሺெ௔௫ሻൈ௙
ೄೈ
ሺெ௜௡ሻൌͳǤͷʹ
[A]
Select a coil with an allowable current of 1.52 A or more.
In this EVK, we use inductance value: 150 ȝH, rated: 1.9 A product.
Radial inductor (closed magnetic circuit type)Core size DR09 x 11 series
Product: XF1501Y-151
Manufacturer: ALPHA TRANS CO,. LTD
ٿ541-0059 Senbanishi KID Bldg 7F, 4-4-11, Bakurou-machi, Chuo-ku, Osaka
http://www.alphatrans.jp/
3 Diode Selection
3.1 Flywheel Diode : D1
Flywheel diode uses fast diode (fast recovery diode).The reverse voltage of the diode is V
IN
(Max): 380 V when the output
voltage at startup is 0 V. Consider the derating and select 600 V diode. The condition where the effective current of the diode is
maximized is when the input voltage is the maximum voltage V
IN
(Max): 380 V, the maximum load current Io (Max): 0.715 A,
and the switching frequency is 60 kHz at the minimum.
ܦݑݐݕ ൌ ௏
ೀೆ೅
ା௏
ಷ
௏
಺ಿ
ሺெ௔௫ሻൌ͵Ǥͻ
[%]
The average current ID of the diode is calculated from the peak current Ip: 1.52 A by the following formula
ܫ஽ሺݎ݉ݏሻൌܫ݌ൈටଵି஽௨௧௬
ଷൌ ͲǤͺ͸Ͳ
[A]
Select the rated current of 0.860 A or more.
In fact, we used RFN5BM6S of 5 A / 600 V product as a result of mounting the board and considering the parts temperature.
3.2 VCC Rectifier Diode : D1
Rectifier diodes are used for diodes to supply VCC. The reverse voltage applied to the diode is V
IN
(Max): 380 V. Consider the
derating and select 600 V diodeBecause the current flowing to the IC is small enough, we use the 0.2 A / 600 V
RRE02VSM6S.

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©
2019 ROHM Co., Ltd. No. 61UG024E Rev.001
2019.1
User’s Guide
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Design Overview – Continued
4 Capacitor Selection
4.1 Input Capacitor : C4
The input capacitor is determined by input voltage VI and output power POUT. As a guide, for an input voltage of 90 to 264 Vac,
2 x P
OUT
[W] ȝF. For 176 to 264 Vac, set 1 x P
OUT
[W] ȝF. Since the output power P
OUT
= 10 W, 22 ȝF / 450 V is selected at 20
ȝF or more.
4.2 VCC Capacitor : C6
The VCC capacitor CVCC is required for stable operation of the device and stable feedback of the output voltage. A withstand
voltage of 25 V or more is required, and 1.0 ȝF to 4.7 ȝF is recommended. 2.2 ȝF / 50 V is selected.
4.3 Output Capacitor : C7, C8
For the output capacitor, select output voltage V
O
of 25 V or more in consideration of derating. For C7 electrolytic capacitors,
capacitance, impedance and rated ripple current must be taken into consideration.
The output ripple voltage is a composite waveform generated by electrostatic capacity: Cout, impedance: ESR when the ripple
component of inductor current: ǻI
L
flows into the output capacitor and is expressed by the following formula.
οܸݎ݅݌݌݈݁ ൌ οܫ௅ൈ൬ ͳ
ͺൈܥ݋ݑݐൈ݂
௦௪൰൅ܧܴܵ
The inductor ripple current,
οܫ௅ൌʹൈሼܫ݌െܫை௎்ሺ݉ܽݔሻሽൌʹൈሺͳǤͷʹെͲǤ͹ͳͷሻൌͳǤ͸ͳ [A]
For this EVK, we use electrostatic capacity: 680 ȝF, ESR: 0.049 ȍ, and the design value of output ripple voltage is less than
100 mV.
οܸݎ݅݌݌݈݁ ൌ οܫ௅ൈቄቀ ଵ
଼ൈ஼௢௨௧ൈ௙
ೞೢ
ቁ൅ܧܴܵቅൌͳǤ͸ͳൈቄቀ ଵ
଼ൈ଺଼଴ఓൈ଺ହ௞ቁ൅ͲǤͲͶͻቅ ൌ ͺ͵ǤͶ
[mV]
Next, check whether the ripple current of the capacitor satisfies the rated ripple current.
Inductor ripple current RMS conversion,
ܫ௅ሾݎ݉ݏሿൌοܫ
௅ൈටଵ
ଷൌͲǤͻ͵
[A]
The ripple current of the capacitor,
ܫ஼ሾݎ݉ݏሿൌටܫ௅ଶെܫ
ை௎்ଶൌξͲǤͻ͵ଶെͲǤ͹ͳͷଶൌͲǤͷͻ
[A]

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©
2019 ROHM Co., Ltd. No. 61UG024E Rev.001
2019.1
User’s Guide
%03;(9.
4.3 Output Capacitor C7, C8 – Continued
Select a rated current of 0.59 A or more.
The output capacitor C7 used a rated ripple current of 1.24 A at 680 ȝF / 25 V.
C8 has added a 0.1 ȝF ceramic capacitor to reduce switching noise.
5 Resistor Selection
5.1 Discharge Resistor : R1,R2,R3
The resistor is for discharging X - Capacitor (C1). Considering withstand voltage, 3 pcs of chip resistance of ROHM
product MCR18 (200 V withstand voltage) are connected in series. 220 kȍ is used in 3 pcs in series so that it becomes 45
V or less after 1 second after turning off the power supply.
5.2 Bleeder Resister : R4
Because it is indirectly fed back to the output voltage, the output voltage increases at light load. This board uses bleeder
resistance for its improvement. Reducing the resistance value improves the rise in the output voltage of the light load, but
increases the power loss. 10 kȍ / 0.25 W is used.
6 EMI Filter Selection
As a measure against "Conducted Emission", Input filter is composed of X-Capacitor: C1 and common mode filter LF1.
X-Capacitor uses 0.22 ȝF / X 2. The common mode filter uses 13 mH (Min) / 1 A.
As a measure against "Radiated Emission", Input filter is composed of Y-Capacitor: C2, C3 and a common mode filter LF2.
Y - Capacitor uses 2200 pF / Y1 and connects the midpoint to the output capacitor so that high frequency noise is not
propagated from the input. Moreover, the common mode filter uses 60 ȝH (Min) / 1 A with good characteristics of the 100
MHz band. If "Radiated Emission" does not have a problem in the state that it is loaded in the set, C2, C3, LF2 are
unnecessary.

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©
2019 ROHM Co., Ltd. No. 61UG024E Rev.001
2019.1
User’s Guide
%03;(9.
Performance Data
Constant Load Regulation
Figure 8. Load Regulation (I
OUT
vs. V
OUT
) Figure 9. Load Regulation (I
OUT
vs. Efficiency)
Table 2. Load Regulation (V
IN
=115 Vac) Table 3. Load Regulation (V
IN
=230 Vac)
I
OUT
V
OUT
Efficiency I
OUT
V
OUT
Efficiency
179 mA 13.737 V 84.64 % 179 mA 13.720 V 80.47 %
358 mA 13.705 V 85.45 % 358 mA 13.687 V 82.52 %
536 mA 13.690 V 85.77 % 536 mA 13.674 V 83.48 %
715 mA 13.681 V 83.36 % 715 mA 13.665 V 84.01 %
Figure 10. Load Regulation (I
OUT
vs. P
LOSS
) Figure 11. Load Regulation (I
OUT
vs. P
LOSS
)
12.6
12.8
13.0
13.2
13.4
13.6
13.8
14.0
14.2
14.4
14.6
14.8
15.0
15.2
15.4
0 500 1000 1500
Output Voltage [V]
Output Current [mA]
-VIN= 90 Vac
-VIN=230 Vac
-VIN=115 Vac
-VIN=264 Vac
0
10
20
30
40
50
60
70
80
90
100
0 100 200 300 400 500 600 700
Efficiency [%]
Output Current [mA]
-VIN= 90 Vac
-VIN=230 Vac
-VIN=115 Vac
-VIN=264 Vac
0.0
0.5
1.0
1.5
2.0
2.5
0 100 200 300 400 500 600 700
Power Loss [W]
Output Current [mA]
-VIN= 90 Vac
-VIN=230 Vac
-VIN=115 Vac
-VIN=264 Vac
0.0
0.1
0.2
0.3
0.4
0.5
110100
Power Loss [W]
Output Current [mA]
-VIN=90 Vac
-VIN=230 Vac
-VIN=115 Vac
-VIN=264 Vac


 
©
2019 ROHM Co., Ltd. No. 61UG024E Rev.001
2019.1
User’s Guide
%03;(9.
Performance Data -Continued
Table 4. Load Regulation : V
IN
=90 Vac㻌㻌㻌㻌㻌㻌㻌㻌㻌 Table 5. Load Regulation: V
IN
=100 Vac
 

Table 6. Load Regulation: V
IN
=115 Vac Table 7. Load Regulation: V
IN
=176 Vac
 
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      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
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      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
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      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
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(IILFLHQF\
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      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      


 
©
2019 ROHM Co., Ltd. No. 61UG024E Rev.001
2019.1
User’s Guide
%03;(9.
Performance Data -Continued
Table 8. Load Regulation : V
IN
=230 Vac㻌㻌㻌㻌㻌㻌㻌㻌㻌 Table 9. Load Regulation: V
IN
=264 Vac
 

9
,1
>9DF@
3
,1
>:@
9
287
>9@
,
287
>P$@
3
287
>:@
3
/266
>:@
(IILFLHQF\
>@
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
9
,1
>9DF@
3
,1
>:@
9
287
>9@
,
287
>P$@
3
287
>:@
3
/266
>:@
(IILFLHQF\
>@
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      
      


 
©
2019 ROHM Co., Ltd. No. 61UG024E Rev.001
2019.1
User’s Guide
%03;(9.
Performance Data -Continued
Line Regulation

Figure 12. Line Regulation (I
IN
vs. V
OUT
) Figure 13. Line Regulation (I
IN
vs. Efficiency)
Figure 14. Switching Frequency (I
OUT
vs. F
SW
) Figure 15. Coil Peak Current (I
OUT
vs. Ipeak)

12.6
12.8
13.0
13.2
13.4
13.6
13.8
14.0
14.2
14.4
14.6
14.8
15.0
15.2
15.4
80 100 120 140 160 180 200 220 240 260 280
Output Voltage [V]
Input Voltage [Vac]
-IOUT= 10 mA
-IOUT=100 mA
-IOUT=500 mA
-IOUT=715 mA
0
10
20
30
40
50
60
70
80
90
100
80 100 120 140 160 180 200 220 240 260 280
Efficiency [%]
Input Voltage [Vac]
-IOUT= 10 mA
-IOUT=100 mA
-IOUT=500 mA
-IOUT=715 mA
0
10
20
30
40
50
60
70
0 100 200 300 400 500 600 700 800
Switching Frequency [kHz]
Output Current [mA]
-VIN=115 Vac
VIN=230 9DF
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
0 100 200 300 400 500 600 700 800
Coil Peak Current [A]
Output Current [mA]
-VIN=115 Vac
-VIN=230 Vac

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©
2019 ROHM Co., Ltd. No. 61UG024E Rev.001
2019.1
User’s Guide
%03;(9.
Performance Data -Continued
Operation Waveform

Figure 16. MOSFET V
IN
= 90 Vac, I
OUT
= 0.715 A Figure 17. Diode V
IN
= 90 Vac, I
OUT
=0.715 A
Figure 18. MOSFET V
IN
= 264 Vac, I
OUT
= 0.715 A Figure 19. Diode V
IN
= 264 Vac, I
OUT
= 0.715 A
Figure 20. MOSFET V
IN
= 264 Vac, Output Short Figure 21. Diode V
IN
= 264 Vac, Output Short
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MOSFET V
DS
MOSFET IDrain Diode I
F
Diode VAnode-Cathode
Diode I
F
'LRGH9$QRGH&DWKRGH
MOSFET V
DS
MOSFET IDrain
Diode I
F
Diode VAnode-Cathode
MOSFET V
DS
MOSFET
IDrain

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©
2019 ROHM Co., Ltd. No. 61UG024E Rev.001
2019.1
User’s Guide
%03;(9.
Performance Data -Continued
Power ON
Figure 22. V
IN
= 115 Vac, I
OUT
= 0.715 A Figure 23. V
IN
= 230 Vac, I
OUT
= 0.715 A
Dynamic Response
Figure 24. V
IN
= 115 Vac, I
OUT
= 10 mA ĺ 0.715 A Figure 25. V
IN
= 115 Vac, I
OUT
= 0.715 A ĺ 10 mA
Figure 26. V
IN
= 230 Vac, I
OUT
= 10 mA ĺ 0.715 A Figure 27. V
IN
= 230 Vac, I
OUT
= 0.715 A ĺ 10 mA

V
OUT
I
OUT
V
OUT
I
OUT
V
OUT
I
OUT
V
OUT
I
OUT

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 
©
2019 ROHM Co., Ltd. No. 61UG024E Rev.001
2019.1
User’s Guide
%03;(9.
Performance Data -Continued
Output Ripple Voltage
Figure 28. V
IN
= 115 Vac, I
OUT
= 10 mA Figure 29. V
IN
= 230 Vac, I
OUT
= 10 mA
Figure 30. V
IN
= 115 Vac, I
OUT
= 0.5 A Figure 31. V
IN
= 230 Vac, I
OUT
= 0.5 A
Figure 32. V
IN
= 115 Vac, I
OUT
= 0.715 A Figure 33. V
IN
= 230 Vac, I
OUT
= 0.715 A
V
OUT
V
OUT
V
OUT
V
OUT
V
OUT
V
OUT

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2019 ROHM Co., Ltd. No. 61UG024E Rev.001
2019.1
User’s Guide
%03;(9.
Performance Data -Continued
Parts surface temperature
Table 10. Parts surface temperature Ta = 25 °C, me asured 30minites after startup
Part
Condition
V
IN
= 90 Vac,
I
OUT
= 0.500 A
V
IN
= 90 Vac,
I
OUT
= 0.715 A
V
IN
= 264 Vac,
I
OUT
= 0.500 A
V
IN
= 264 Vac,
I
OUT
= 0.715 A
IC1 50.4 °C 67.3 °C 51.8 °C 64.9 °C
D1 61.5 °C 76.9 °C 64.3 °C 77.5 °C
DB1 49.6 °C 54.8 °C 44.1 °C 46.0 °C
L1 49.8 °C 61.8 °C 47.6 °C 62.5 °C
EMI
嵣Conducted Emission: CISPR22 Pub 22 Class B
Figure 34. V
IN
= 110 Vac / 60 Hz, I
OUT
= 0.715 A Figure 35. V
IN
= 230 Vac / 50 Hz, I
OUT
= 0.715 A
QP margin = 13.5 dB, AV margin = 20.5 dB QP margin = 18.3 dB, AV margin = 23.9 dB
嵣Radiated Emission: CISPR22 Pub 22 Class B
Figure 36. V
IN
= 110 Vac / 60 Hz, I
OUT
= 0.715 A Figure 37. V
IN
= 230 Vac / 50 Hz, I
OUT
= 0.715 A
QP margin = 6.6 dB QP margin = 6.0 dB
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©
2019 ROHM Co., Ltd. No. 61UG024E Rev.001
2019.1
User’s Guide
%03;(9.
Schematics
V
IN
= 90䡚264 Vac, V
OUT
= 14 V
Figure 38. BM2P141X-EVK-001 Schematics
Bill of Materials
Table 11. BoM of BM2P141X-EVK-001
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